KR100906032B1 - Device For Treating Powder Particles By Rotary Flow - Google Patents

Abstract

In the rotary flow processing apparatus of the granular material, a gas circulation path is formed on the outer circumferential side of the cylindrical processing chamber 2 into which the granular material is injected, via the circumferential surface plate 202, and the circumferential surface plates 202, 212 are formed in the processing chamber 2. Make it rotatable around the shaft. The gas is introduced from the outer circumferential side of the processing chamber 2 through the circumferential surface plates 202 and 212 to exert a centripetal force on the granular material, while centrifugal force is applied to the granular material by the rotation of the circumferential surface plates 202 and 212. To form a fluidized bed controlling the behavior of In another aspect, the bug filter 5 is provided in the axial region of the process chamber 2, and the bug filter 5 makes the arrangement ratio in the process chamber wider than the surface area width of the gas vent means 212 or the gas vent means ( It is larger than the area of 212). In the axial region of the processing chamber 2 where the centrifugal force is weak and the discharge rate is increased, the flow rate of the fluidized bed is reduced by efficiently discharging the gas flowing into the processing chamber 2 while balancing the centripetal force and the centrifugal force with respect to the powder. Operation and control of the inflow and outflow of gas in the air is most appropriate.

Process chamber, circumferential plate, gas venting means, bug filter, casing body

Description

Device For Treating Powder Particles By Rotary Flow}

FIELD OF THE INVENTION The present invention belongs to the technical field of flow treatment apparatuses for processing particulates by mixing, assembling, coating, surface modification, drying, reaction, and the like, and particularly relates to flow treatment apparatuses suitable for treating particulate granules.

Generally, the fluidized bed apparatus shown in FIG. 20 is known as an apparatus which mixes, granulates, coats, dries, or reacts the granules by injecting gas such as various gases or air into the processing chamber.

This fluidized bed apparatus constitutes a truncated cone-shaped container 2A in which a distribution plate (for example, punched porous plate) 3A for ventilation is arranged on the bottom surface. When the apparatus is used for drying treatment of the granular material, heating air is introduced into the container 2A from below the dispersion plate 3A, while the granular material 1A introduced into the container 2A is suspended in fluidization. It is dried.

On the other hand, when using this apparatus for granulation treatment, the granulating binder liquid (such as carboxymethyl cellulose, polyvinyl alcohol, hydroxypropyl cellulose, etc.) is prescribed to the fluidized powder 1A rather than the nozzle 4A. It is granulated by spraying an aqueous solution or the like) to wet the granules and drying them to form solid crosslinks between the particles.

Background Art In recent years, in all fields such as pharmaceuticals, pesticides, fertilizers, foodstuffs, ceramics, etc., it is required to increase the functionality of particles and to impart new functions to the particles in order to manufacture high quality products. And also in the granulation process, processing of the microparticle granular material of a micron and a sub micron area | region is requested | required as a raw material. That is, for example, when a granulated product having a size of about 50 μm is to be produced, it is necessary to handle fine particles having a size of about 10 to 30 μm or a single digit micron region as a raw material.

However, when the particle size of the treatment material decreases, the cohesiveness and the adhesion increase rapidly, and thus, in the fluidized bed device having the conventional structure as described above, it is impossible to uniformly fluidize and disperse the powder. On the other hand, when the supply amount of the heating air is increased in order to uniformly fluidize and disperse, there is a problem that it is very difficult to handle, such as blowing the fine powder out of the system as it is, so that a control for forming a good fluidized bed cannot be performed. Thus, in the conventional fluidized bed apparatus, there was a limitation due to the structure of the apparatus itself for substantial fluidized bed control.

An object of the present invention was devised to solve the above problems, and the gas is introduced from the outer circumferential side of the treatment chamber through the circumferential face plate to impart centripetal force to the powder in the treatment chamber, and at the same time with the rotation of the circumferential face plate. It is to form a fluidized bed which controls the behavior of the powder by imparting centrifugal force. By doing in this way, even if it is a fine particle granule of micron and sub micron area | region, it can provide the flow processing apparatus of the granule which can perform various processes, such as mixing, granulation, coating, drying, and reaction.                 

In the concrete implementation of such a flow treatment device, a specific arrangement or connection with a variety of equipment such as a gas supply device, an operation control device, a motor, an assembly nozzle, an operation panel, a gas supply pipe, wiring, or the size of a processing chamber, a bug filter There are various problems to be solved for realization of the overall configuration of the device, such as the maintenance of optimization of the inflow and discharge of gas due to blockage and the like, the supply structure of the gas, etc. in consideration of the manufacturability and operability.

Another object of the present invention is to solve the above-mentioned problems toward the commercialization of the product, the gas introduced into the processing chamber to the center region in the processing chamber where the centrifugal force is weak and the discharge speed is increased, it is to slow the discharge rate. By doing so, it is possible to efficiently discharge the gas introduced into the process chamber while balancing the centripetal force and the centrifugal force for the powder regardless of the particle size, and the most appropriate operation control of the inflow and discharge of gas in the fluidized bed behavior. can do. Alternatively, the product recovery rate can be improved by reducing the amount of adhesion of the particulate matter accompanying the airflow to the bug filter and the amount of outflow passing through the bug filter.

A further object of the present invention is to make the gas supply port small while simultaneously introducing gas into the treatment chamber evenly from the entire surface area of the gas venting means without excessively circulating the gas supplied to the gas inlet means, and casing the gas supply passage. It is possible to manufacture the supply structure without protruding the outer surface of the substrate. As a result, the arrangement of the gas inlet means, the casing and the processing chamber, and the linkage between the gas inlet means and the gas supply device are most suitable, and the gas supply structure in the entire apparatus can be simplified to manufacture the device.

Technical means employed by the present invention to solve the above problems is to flow gas into the cylindrical processing chamber into which the granular material is introduced, through the circumferential surface plate having air permeability, and to introduce the gas introduced into the processing chamber from the processing chamber via a bug filter. It is a flow processing apparatus of the granulated material discharged, Comprising: The circulation path of the said gas is formed in the outer peripheral side of the said process chamber via the said circumferential face plate, and the said circumferential face plate is comprised so that rotation is possible about the axial center.

Another technical means to which the present invention is employed is a rotatable processing chamber formed by arranging a gas-permeable gas ventilating means around a shaft center in a casing, and formed on an outer circumferential side of the processing chamber to provide the gas venting means. And a gas inflow means for introducing gas into the processing chamber via a bug filter provided in the processing chamber and discharging the introduced gas out of the processing chamber, wherein the bug filter is a batch ratio in the processing chamber. It is characterized by that it is comprised larger than the surface area width of the said gas vent means, or larger than the area of the said gas vent means.

Another technical means to which the present invention is employed is a rotatable process chamber formed by arranging a gas-permeable gas ventilating means around a shaft center in a casing, and formed on an outer circumferential side of the process chamber to form the gas vent means. And a gas inlet means for introducing gas into the processing chamber via a gas filter, and a bug filter installed in the processing chamber to discharge the introduced gas out of the processing chamber, wherein the gas inflow means includes the casing and the And a gas inlet formed between the ventilation means and a plurality of supply ports arranged at a predetermined interval on the inner wall forming the gas inlet.

Fig. 1 is an overall configuration diagram of a vertical flow processing device showing the first embodiment.

Fig. 2 is an overall front view of the lateral flow processing apparatus showing the second embodiment.

3 is an overall side view of the transverse flow treatment apparatus.

Fig. 4 is a side view showing the rotation operation mechanism of the casing body.

5 is a detailed view of an essential part of the rotation operation mechanism.

6 is a front view of the casing body;

Fig. 7 is a rear view showing the casing body.

Fig. 8 is a side sectional view showing the casing body.

9 is a sectional view of an essential part of the processing chamber.

10 is a schematic side cross-sectional view showing another example of a bug filter.

11 is a cross sectional view of an essential part of the flow apparatus.

12 is an explanatory view of the behavior of the granular material.

Fig. 13 is an explanatory diagram showing a behavior of the powder layer.

It is explanatory drawing which shows the example of use of a rotation operation lever.

Fig. 15 is an overall perspective view of the flow treatment apparatus in the third embodiment.

16 is an explanatory view of the operation of the casing body;                 

17 is a front view showing the casing body of the flow processing apparatus.

Fig. 18 is a front view showing a state where the outer cover member of the casing body is opened.

Fig. 19 is a side sectional view showing the casing body part.

20 is a sectional view of an essential part of a conventional drying and assembling apparatus.

EMBODIMENT OF THE INVENTION This invention is demonstrated in detail based on the flow processing apparatus of the granulated material illustrated as a suitable embodiment.

The first embodiment in the case where the apparatus is constructed in the vertical shape will be described based on FIG. 11 which is common to the first and second embodiments. Reference numeral 1 denotes a cylindrical casing, and a cylindrical processing chamber 2 for processing the granular material is disposed in the casing 1 with a predetermined space from the inner wall surface of the casing 1.

In the processing chamber 2, the lower fixing plate 201 is rotatably connected to the driving device 3 via the rotation shaft 301. The circumferential surface plate 202 provided in the outer circumferential surface region of the processing chamber 2 constitutes a predetermined ventilation means for introducing a predetermined gas such as various gases and air into the processing chamber 2, and is configured to allow ventilation from the dispersion plate. . The circumferential plate 202 is attached by the bolt 204 in a state where the peripheral plate 202 is sandwiched between the lower fixing plate 201 and the upper fixing plate 203 by both, and is detachably detachable by the tension releasing operation of the bolt 204. It is. The dispersion plate can be suitably exchanged with other materials such as porous plates, slits, wire meshes, multilayer wire meshes, and metal fibers having different pore sizes due to physical properties such as particle diameter of the treated powder.

In the processing chamber 2, an assembling nozzle 4 for spraying the supplied assembling binder liquid is provided. The upper fixing plate 203 is provided with respective pipes for supplying the assembling binder liquid and compressed air to the assembling nozzle 4. In addition, the upper fixing plate 203 is provided with a communication port to the discharge pipe 501 in which the cylindrical bug filter 5 is housed as discharge means for discharging the gas introduced into the processing chamber 2. In addition, although the bug filter 5 is provided in the middle of the discharge pipe 501 in FIG. 1, the bug filter 5 may be provided in the process chamber 2 as shown to FIG. 8, FIG.

In the case of the vertical type device, the granules are deposited downward under the influence of gravity, and the tendency of the granules having a small particle diameter and poor fluidity is stronger. Therefore, even if the process chamber 2 is rotated and the centrifugal force is given to the powder in the processing chamber 2, the layer thickness (distance in the axial direction from the circumferential surface plate 202) tends to be larger on the lower side of the powder layer. Reference numeral 202a denotes a bottom plate for variably adjusting the internal volume of the process chamber 2, that is, the height of the process chamber 2, and the air flow supplied from the gas inlet means uniformly passes through the circumferential surface plate 202 to form a suitable fluidized bed. It is to make it easier. Arbitrary plate members, such as a nonporous plate and a porous plate (which can flow a predetermined | prescribed gas from below), are employ | adopted as the bottom plate 202a.

The casing 1 has a through hole of the rotating shaft 301 at the bottom, and has a container 101 having a supply port 103 for supplying predetermined gases (various gases such as heated air and inert gas) to the side; It is comprised by the cover member 102 which has a communication hole which communicates with the piping hole of each piping which supplies the binder liquid for assembly and compressed air to the assembly nozzle 4, and the discharge pipe 501, The lid member 102 is attached to the flange portion 104 of the container 101 so as to be opened and closed by a bolt.

As said gas, the heating air which heated the air conveyed from the blower 6 by the heater 601 is used, and this heating air is conveyed to the said supply port 103 via the supply pipe 105. Moreover, the compressed air supplied from the compressor 602 and the binder liquid for granulation supplied from the binder supply apparatus 604 are respectively conveyed to the said nozzle for assembly 4, and are made to be atomized into the process chamber 2, respectively. . In order to produce a fine granulated material, it is preferable to use so-called two-fluid or four-fluid atomizing nozzles for this granulation nozzle 4.

The predetermined space formed between the inner wall surface of the casing 1 and the outer circumferential region of the circumferential plate 202 (vent means) of the processing chamber 2 is formed as a circulation path 205 of the heating air supplied from the supply port 103. .

In supplying the heating air to the circulation path 205, as shown in FIG. 11, the supply port 103 is arrange | positioned for supplying heating air toward the rotation direction of the process chamber 2, and the supply pipe 105 is In order to supply this heating air more stably, it is arrange | positioned at the side surface of the casing 1 from the substantially tangential direction of the same rotation direction as the process chamber 2. According to these circulation paths 205 and the supply port 103, the gas inflow means which disperse | distributes heating air in the process chamber 2 via the circumferential surface plate 202 is comprised.

The heated air introduced into the processing chamber 2 is discharged out of the system through the discharge pipe 501 through the bug filter 5 from the communication port opening to the lid member 102. Above the bug filter 5, a pulse jet nozzle 603 for ejecting the compressed air from the compressor 602 is provided, and the compressed air is intermittently blown toward the bug filter 5, thereby providing a bug filter. The granular material collected by (5) is returned to the process chamber 2.

2 to 9 show a second embodiment in which the present apparatus can be configured horizontally, and FIG. 11 is a common explanatory diagram with the first embodiment. In this horizontal flow processing apparatus, the bug filter 5 is arrange | positioned in the axial center part in the process chamber 2, and the bottom face plate 202a is not provided in the process chamber 2. The other fluidized bed formation principle is the same as that of the first embodiment.

2 is an overall front view of the flow processing apparatus, and FIG. 3 is an overall side view of the flow processing apparatus. As shown in these figures, the casing 1 is fixed to the main body bracket 116 at the bottom thereof and attached to the mount 7 via the main body bracket 116. A pair of left and right arm-shaped support frames 711 are installed on the mount 7 at predetermined intervals, while the main body bracket 116 is provided with a pair of left and right support shafts 116a protruding from the left and right sides. The support shaft 116a is rotatably supported by the support frame 711. As a result, the casing 1 is configured such that the rotational attitude of the processing chamber 2 can be changed from the horizontal to the vertical, and the processing chamber 2 shown in FIG. 1 can be used both in the vertical type and in the horizontal type. It is. In this apparatus, in the case of the vertical type, the opening and closing of the powder 112 is carried out toward the opening 112a of the casing 1 upward (the rotation axis is vertical), and the opening 112a is moved in the horizontal direction (the rotation axis). This horizontal) granular material process is performed.

Fig. 4 is a side view showing the rotation operation mechanism of the processing apparatus main body, and Fig. 5 is a detailed view of the main part of the rotation operation mechanism. As shown in these figures, on the outer side of the support frame 711 on the right side in FIG. 2, a rotation operation mechanism 8 for rotating the casing 1 is provided. The rotary operation mechanism 8 rotates integrally with the large diameter gear 811 integrally installed on the right support shaft 116a, the small diameter gear 812 meshed with the large diameter gear 811, and the small diameter gear 812. It comprises a worm foil 813, a worm 814 engaged with the worm foil 813, and a handle shaft 815 for rotating the worm 814. A handle 816 is provided at the front end of the handle shaft 815, and by turning the handle 816, its operating force is worm 814, worm foil 813, small diameter gear 812, and large diameter gear ( The casing body 1 is rotated by being driven to the support shaft 116a via 811. In addition, since the worm 814 is interposed in the transmission path, a large reduction ratio can be secured to reduce the steering wheel operating force, and the casing body 1 can be fixed to an arbitrary position by the brake action of the worm 814. It is composed.

6 is a front view showing the casing main body 1 of the flow processing apparatus, FIG. 7 is a rear view showing the casing main body 1, FIG. 8 is a side cross-sectional view showing the casing main body 1, and FIG. 9 is a processing chamber. The main part of the cross-sectional view. As shown in these figures, the casing main body 1 of the flow processing apparatus is cylindrical having an opening 112a in the front face portion, the circulation passage 215 of air therein, the processing chamber 2 in which the front face portion is opened, and the The bug filter 5 arrange | positioned at the shaft center part in the process chamber 2 is provided.                 

The air circulation path 215 is formed between the inner wall surface of the casing 1 and the outer circumferential surface region of the circumferential surface plate 212 (dispersion plate) as the ventilation means of the processing chamber 2. The rear face portion 112b of the casing 1 is fixed integrally to the main body bracket 116, while the opening portion 112a of the front face portion is covered with a disc shaped cover member 112 formed of a transparent acrylic resin. The outer periphery of the lid member 112 is fixed to the casing 1 by using the plurality of screw bolts 117, and detachment and detachment are enabled by the tension relaxation operation of the screw bolt 117. In addition, a supply port 113 for introducing a predetermined gas (various gases such as heated air and an inert gas) is formed in the air circulation path 215 at the upper right end of the casing 1, and is introduced from the supply port 113. As shown in FIG. 11, one gas is circulated along the inner circumferential surface of the casing 1. As shown in FIG. For example, when introducing heated air, the air generated by the blower 6 is heated by the heater 601 and introduced into the gas supply port 113 as in the gas inflow means of the first embodiment shown in FIG.

The processing chamber 2 is formed by opposing the disc-shaped rear side fixing plate 211 and the disc-shaped cover member 216 formed of a transparent acrylic resin at predetermined intervals and sandwiching the cylindrical dispersion plate 212 during that time. have. The fixing plate 211 and the cover member 216 are connected by a plurality of bolts 214, and the cover member 216 and the distribution plate 212 can be attached and detached by the tension relaxation operation of the bolts 214. . The distribution plate 212 is disposed at a predetermined interval with respect to the inner circumferential surface of the casing 1, and the gas introduced into the air circulation path 215 from the supply port 113 passes through the distribution plate 212 and the processing chamber 2. It is configured to flow in. The dispersion plate 212 can be appropriately replaced with a different pore size or material depending on the particle size of the powder to be processed and the like, and a porous plate, a slit, a wire mesh, a multilayer wire mesh, a metal fiber, or the like can be used. For example, a multilayer wire mesh is formed by sintering a plurality of wire meshes with different eyes, applying a predetermined pressure and temperature, and forming a contact surface of fine powder into a fine wire mesh to prevent blockage by the powder. have.

Cylindrical holder 118 in which a cylindrical support shaft 217 extending rearward is integrally connected to the central portion of the rear fixing plate 211, and the rotary support shaft 217 is installed in the body bracket 116. Is rotatably supported through the bearing 119 at the inner circumferential portion of the. The motor 3 (drive device) is arrange | positioned under the rotation support shaft 217, and is integrally attached to the pulley 312 and rotation support shaft 217 integrally provided in the motor shaft 311. The pulley 313 to be installed is interlockedly connected via the transmission belt 314. Thereby, the process chamber 2 is rotated in accordance with the drive of the motor 3, and it becomes possible to apply centrifugal force to the granular material inside.

The bug filter 5 is formed of a cylindrical mesh plate, and has a disk-shaped rear face plate 512 having an opening in the center thereof and a disk-shaped front face plate 513 made of a transparent acrylic resin facing each other at predetermined intervals. It is pinched in between and attached. The rear face plate 512 and the front face plate 513 are connected by a plurality of bolts 514, and the front face plate 513 and the bug filter 5 can be attached or detached by the tension relaxation operation of the bolts 514. Become. The bug filter 5 is arrange | positioned at the predetermined space | interval with respect to the dispersion plate 212, and is comprised so that the gas which flowed in into the process chamber 2 via the distribution plate 212 may be discharged | emitted via the bug filter 5. The bug filter 5 can be appropriately replaced with a different pore size or material depending on the particle size of the powder and the like to be processed, and is used for the dispersion plate 212. In addition, the bug filter 5 is avoided by the retainer and the retainer. You may use the thing comprised cylindrically by the bag-shaped bug cross (woven fabric, nonwoven fabric) which consists of various materials attached.

A cylindrical discharge pipe 511 extending rearward is integrally connected to the central opening of the rear face plate 512, and the gas discharged from the processing chamber 2 via the bug filter 5 receives the discharge pipe 511. It is configured to be discharged to the outside of the device (outside the system). The discharge pipe 511 is rotatably supported on the inner circumferential portion of the rotary support shaft 217, and is integrally provided with a rotary operation lever 515 at the end thereof. The rotation operation lever 515 is operated when the granular material is stored on the bug filter 5, and it is allowed to operate the bug filter 15 to rotate about 180 degrees.

In the bug filter 5, an assembling nozzle 4 is provided as shown in FIG. The assembling nozzle 4 is connected to a binder supply device and a compressor (see Fig. 1) via a pipe, and sprays a predetermined assembling binder liquid supplied from the supply device into the processing chamber 2.

Fig. 10 is a schematic side cross-sectional view showing another example for driving the bug filter 5 in the second embodiment. In the processing apparatus shown in this figure, the particle separation on the bug filter 5 is carried out by rotating the bug filter 5 by the driving force of the motor 3, without providing the rotation operation lever 515 in the discharge pipe 511. FIG. It is comprised so that a sieve may drop. In the discharge pipe 511 in the present embodiment, a pulley 315 is provided in place of the rotation operation lever 515. The pulleys 312 and 316 are provided in the motor shaft 311, and the so-called driving force of the motor 3 is transmitted to the discharge pipe 511 via the transmission belt 317 wound between the pulleys 315 and 316 and rotated. Dual rotating shaft mechanisms are employed. In rotating the distribution plate 212 and the bug filter 5 by the driving force of the motor 3, the transmission ratio is set so that the rotational angular velocity of the bug filter 5 does not coincide with the rotational angular velocity of the distribution plate 212. . The pipe of the nozzle 4 for assembly is rotatably joined to the other end of the pipe for the nozzle 4 for assembly so that the nozzle tip can rotate integrally like the bug filter 5. As a result, it is avoided that the assembling nozzle 4 provided in the bug filter 5 sprays the assembling binder liquid only on a predetermined region of the dispersion plate 212. In addition, the detailed structure of the dual rotating shaft mechanism can refer to Unexamined-Japanese-Patent No. 11-43238 (Unexamined-Japanese-Patent No. 2002-143705), and also the bug filter 5 and the dispersion plate 212 are mentioned above. ) Are rotated in the same direction, but they may be rotated in the opposite direction.

Next, in the apparatus comprised in this way, the method to dry-process while mixing and granulating powder granules is demonstrated based on FIG. 12, FIG. Description will be made mainly on the second embodiment, but the first embodiment will also be referred to as appropriate. In order to inject a certain amount of powder into the processing chamber 2, first, the lid member 112 (102) and the cover member 216 are opened with the opening 112a of the casing 1 facing upward (vertical). A predetermined amount of powder is injected into the processing chamber 2 to close the lid member 112 and the cover member 216. Thereafter, the casing 1 is transformed in the transverse direction, the motor 3 is driven to rotate the processing chamber 2 to impart centrifugal force to the granular material, and to the inner wall surface side of the circumferential surface plate 212 (202). Integrate uniformly. The heated air introduced into the circulation path 205 (215) is introduced into the processing chamber 2 via the circumferential surface plate 212 202 to impart a centripetal force to the granular material, thereby dispersing and fluidizing the fluidized bed.

By providing a supply discharge pipe for the material in the discharge pipe 511 (501), it is possible to continuously operate it, and when the powder is added while the process chamber 2 is rotated, the predetermined amount of the powder can be easily injected in a short time. When compressed air is introduced into the processing chamber 2 using the nozzle 4 for assembling as needed, the fluidized bed formation can be performed smoothly, and a powder layer can be formed to a uniform thickness in a very short time. In this case, in the first embodiment, the height of the processing chamber 2 is adjusted by the bottom plate 202a as necessary, and a heating plate is supplied to the bottom plate 202a to supply heating air from below. The granular material can be suspended and fluidized by supplying only compressed air from the assembling nozzle 4 before performing the assembling operation. By doing in this way, fluidized-bed formation from an initial operation state can be performed smoothly, and even if it is also in operation, when it uses the said adjustment and supply together, it can also use as a group which forms a uniform powder layer (thickness).

Here, in the processing chamber 2, the air velocity is faster as the inner side (axial direction) of the powder layer becomes smaller, and the centrifugal force applied to the powder becomes smaller, so that fluidization starts from the surface of the powder layer. Therefore, even if the rotational speed of the processing chamber 2 is constant, by controlling the supply amount of the heating air, it is possible to control the fluidized bed from the fixed bed to which the powder is not fluidized. In Fig. 13, Figs. 13A, 13B, and 13C show a fixed bed, a partial fluidized bed, and a complete fluidized bed, respectively.                 

In the part where the powder is not fluidized, the individual powder particles show the micro flow behavior shown in Fig. 12 by adjusting the centrifugal force and the centripetal force. At that time, a pressure difference arises before and after the powder layer through which the heated air passes, and in the casing 1, the inside of the circulation path 215 (205) shows a high pressure and the inside of the processing chamber 2 shows a low pressure. This pressure difference becomes large with increase of the powder layer thickness, the rotational speed of the process chamber 2, and the amount of heating air (wind speed). When the thickness of the powder layer and the rotational speed of the processing chamber 2 are constant, the pressure difference increases with the wind speed, but when it exceeds a certain speed, the pressure difference becomes constant, and this is the state in which the powder is completely fluidized, and this speed is the complete fluidization start rate. Shall be. This complete fluidization start rate can be theoretically calculated from the relationship between the pressure difference of the powder bed and the wind speed. Therefore, the behavior of the granular material in the processing chamber 2 adjusts the balance between the rotational speed of the processing chamber 2 and the air supply amount, by adjusting the pressure difference in the circulation path 215 205 and the processing chamber 2, thereby allowing the granular material to be recalled. A series of behavior control is possible from the fixed bed formation state centrifugally pressed to the circumferential surface plate 212 (202) side to the fluidized bed formation state centripetally diffused in the axial direction.

In the case of the vertical type device as in the first embodiment, since the powder is easily affected by gravity, it is required to have a wind speed larger than the calculated value in order to fluidize the powder, and the particle size is smaller and the fluidity is poor and the tendency is higher. Since it is strong, in order to control a device, it is preferable to confirm by actual measurement using the granule actually used beforehand.

According to the control means for controlling the centrifugal force and the centripetal force, it is possible to control the behavior of the granular material shown in FIG. However, even if the binder liquid is unsprayed in the state of the fixed bed (FIG. 13A) in which the powder is not fluidized at all, or the partial fluidized bed (FIG. 13B) in which only the inner side of the powder layer is fluidized, the process chamber 2 It is difficult to uniformly assemble the whole granules put into the sheet). Therefore, mixing, granulation and drying are usually performed by the complete fluidized bed of FIG. 13C.

The centrifugal force greater than the centripetal force is imparted to the granular material, and the operation of compressing the granular material by compressing it to the circumferential surface plate 212 (202) side, giving a balanced centripetal force and centrifugal force, and uniformly fluidizing the granular material are repeated. It is also possible to assemble by forming, that is, by repeatedly forming the fixed bed of FIG. 13A and the complete fluidized bed of FIG. 13C. Also in this case, it is preferable to spray the binder liquid, but since it can be granulated with some binder liquid, the energy cost required for drying can be greatly reduced.

14 is an explanatory diagram showing an example of use of the rotation operation lever 515. As shown in Fig. 14, when the powder is processed, the powder is put into the processing chamber 2 (Fig. 14 (A)), and the processing chamber 2 is rotated (Fig. 14 (B)). . In the initial stage of rotation, since the rotational speed is low and the centrifugal force acting on the powder is small, the powder is free-falling and deposited on the bug filter 5 (Fig. 14 (C)). When the rotational speed of the processing chamber 2 is equal to or higher than a predetermined speed, most of the granules form a powder layer on the inner circumferential surface of the dispersion plate 212 by centrifugal force, but the centrifugal force is applied to the granules deposited on the bug filter 5. Since this is not provided, the state as it is is maintained (Fig. 14 (D)). Therefore, when the bug filter 5 is rotated approximately 90 degrees by operating the rotation operation lever 515, the granules deposited on the bug filter 5 fall to their own weight (Fig. 14 (E)). The dropped powder is assimilated to the powder having already formed a layer on the inner circumferential surface of the dispersion plate 212 by gravity and centrifugal force.

As a method of not using the rotation operation lever 515, as described above, using the configuration of rotating the bug filter 5 with the driving force of the motor 3, the powder granules on the bug filter 5 are dropped. You may also Alternatively, by using a structure using a retainer and a bag-shaped bug cross fitted to the retainer, compressed gas may be intermittently blown out from the discharge pipe 511 to instantly expand the bug cross to scatter the powder.

In the embodiment of the present invention configured as described above, mixing, granulation and drying are performed by forming a fluidized bed of powder in the processing chamber 2. In the present apparatus, the processing chamber 2 is configured such that the circumferential surface plate 212 202 as the ventilation means composed of the dispersion plate is rotatable about the shaft center, and the rotatable circumferential surface plate 212 202 is provided. The heating air supplied from the gas inlet means is introduced into the processing chamber 2 via the gas. Therefore, in the fluidized bed obtained by this apparatus, the behavior of the granular material in the process chamber 2 is controlled by the control means which controls the centrifugal force by rotation of the process chamber 2, and the centripetal force by inflow of heating air. For this reason, with respect to the granular material in the process chamber 2, the action | action of the force from the opposite direction of centrifugal force and a centripetal force can be provided to a balance, and the said granular material is a predetermined area | region on the circumferential surface plate 212 (202) side. Behavior control to disperse fluidize in the state which kept the state laminated | stacked in the uniform layer thickness in the inside can be performed. In addition, even when the heating air required for uniformly dispersing the powder is supplied, since the centrifugal force acts on the powder, there is no fear of blowing off the powder as in a conventional fluidized bed apparatus, thereby forming a good fluidized bed. It can be able to treat particulate granules of micron and sub-micron regions.

The operation of balancing the centrifugal force and the centripetal force by the control means can also be easily performed, and the behavior control can be performed so as to form a fixed bed, a partial fluidized bed, or a complete fluidized bed with respect to the granular material. Therefore, by repeatedly forming the fixed fluid from the fixed bed to the complete fluidized bed during the granulation process described above, and applying the cohesive force and the adhesion force of the raw material granules themselves, by compressing the granules, it is possible to generate a solid granulated product to improve the processing efficiency. Can be planned.

In addition, the behavior of the granular material is to be laminated in a predetermined region on the circumferential surface plate 212 (202) to form a fluidized bed, and to be assembled without adversely affecting the fluidization treatment in the rotation center region in the processing chamber 2 The nozzle 4 and the bug filter 5 can be arrange | positioned, and the space in the process chamber 2 can be utilized effectively.

Although the processing chamber 2 in this embodiment was formed in a cylindrical shape, without being limited to this, if the arbitrary position cross section is concentric, it may be a truncated cone shape or a shape in which the center part is enlarged, and the whole or a part is a double cylinder structure. Also good as. When a non-cylindrical shape is used for the processing chamber 2, the granular material laminated to the circumferential surface plate 212 (202) is formed in the shape of the processing chamber 2 inherently, for example, forming a fluidized bed having a different layer thickness. And mixing, granulation, and drying treatment using the same.                 

An air circulation path 215 205 having a predetermined space is formed between the inner wall surface of the casing 1 and the outer circumferential surface region of the circumferential surface plate 212 202, and the gas inlet means is supplied with a supply device (blower 6). ) And a circulation port (215 (205)) and a supply port (113 (103)) for introducing the heating air from. Therefore, the heated air can be uniformly pressurized in this circulation path 215 (205) to uniformly disperse and flow into the process chamber 2. The circulation path 215 (205) is larger than the powder in the vent hole of the circumferential plate (porous plate) 212 (202), and even if the powder is discharged to the circulation path 215 (205) during processing, Since air flows into the processing chamber 2 via the circumferential surface plate 212 and forms a flow path discharged to the bug filter 5, the discharged powder can be blown back into the processing chamber 2 again.

The gas inlet means is constituted by the supply port 113 (103) and the circulation path (215 (205)) as described above, but is not limited thereto, and the air is supplied to the circumferential surface plate 212 (202). It is not necessary to provide the circulation path 215 (205) as long as the structure is supplied evenly from the outer circumferential surface area.

The supply port 113 (103) is disposed on the side of the casing 1 to supply the heating air in the same rotational direction as the processing chamber 2. Therefore, the heating air supplied from the supply port 113 (103) to the circulation path 215 (205) flows in the said circulation path 215 205 in a fixed direction (rotational direction of the processing chamber 2), and the circumferential surface plate Since it flows in and out uniformly and smoothly from the vent hole of [212 (202)] into the process chamber 2, an equal centripetal force with respect to a granular material can be provided.                 

A discharge means including a bug filter 5 for discharging the heated air introduced into the processing chamber is connected to the central portion of the processing chamber 2, and the heating air in the processing chamber 2 adversely affects the behavior of the granular material. It can discharge efficiently from the rotation center area | region which has no work. It is possible to arrange the bug filter 5 in the said central part, and can utilize the rotation center area effectively, and can comprise the whole apparatus compactly.

The control means has a shaft center from a fixed layer formation state in which the granular material is centrifugally pressed to the circumferential surface plate 212 (202) side by the balance adjustment between the rotational speed of the processing chamber 2 and the air supply amount, and laminated at a uniform layer thickness. It is comprised so that the behavior control to reach the fluidized-bed formation state which flows by centripetal diffusion in a direction is fluidized. Therefore, the balancing operation of the centrifugal force and the centripetal force by the control means can be easily performed, and can be processed by the behavior control for appropriately forming the fixed bed, the partial fluidized bed, or the complete fluidized bed with respect to the granular material. It becomes possible to assemble by the behavior control which repeats compression in a fixed bed formation state and dispersion | distribution in the said fluidized bed formation state during granulation process, and performs a compression process to the said granular material in addition to the cohesion force and adhesive force which raw material granule itself has, In addition, it is possible to improve the processing efficiency by enabling the creation of a solid assembly.

The assembly nozzle 4 is provided in the center in the process chamber 2, and the granulation binder liquid is sprayed from the assembly nozzle 4 toward the circumferential surface plate 212 (202) direction. Therefore, the binder liquid for granulation is also sprayed uniformly to the circumferential surface plate 212 (202) by centrifugal force, so that the granulated material can be efficiently wetted and granulated.                 

In this apparatus, gas is introduced into the cylindrical processing chamber 2 into which the granular material is injected, through the air permeable circumferential plate 212, and the gas introduced into the processing chamber 2 is discharged out of the processing chamber via a bug filter. Further, the gas circulation path 215 is formed on the outer circumferential side of the processing chamber 2 via the circumferential surface plate 212, and the bug filter 5 is disposed inside the axial center side of the processing chamber 2, The face plate 212 is configured to be rotatable in the circumferential direction of the bug filter 5. Accordingly, while gas is introduced from the outer circumferential side of the processing chamber 2 via the circumferential surface plate 212, centrifugal force can be applied to the granular material with the rotation of the circumferential surface plate 212, and the fine particles are separated in the micron and sub-micron regions. Even in a sieve, various treatments such as mixing, granulation, coating, drying, and reaction can be performed while controlling the behavior thereof. In addition, in the rotation center region where the behavior of the powder in the processing chamber 2 is not adversely affected, the entire filter surface of the bug filter 5 can be uniformly used to disperse and equalize and discharge the inlet gas. This facilitates the control of the behavior in which the centrifugal force and the centripetal force are balanced by avoiding the above-mentioned drift of the gas, and can contribute to the formation of a uniform and stabilized fluidized bed, which can further improve the processing efficiency.

Since the assembling nozzle 4 is provided in the bug filter 5, not only the binder liquid for assembling can be sprayed from the center part of the processing chamber 2, but also the supporting member of the assembling nozzle 4 with the bug filter 5. It can also be used to simplify the structure.

Since the bug filter 5 is comprised so that rotation is possible in the circumferential direction, and is rotated by the rotation operation lever 515 (operation means), the powder granules accumulated on the bug filter 5 can be easily dropped.

In another embodiment, the bug filter 5 is configured to be rotatable in the circumferential direction thereof, and is rotated by the motor 3 (drive means), thereby making the operation of the rotation operation lever 515 unnecessary and at the same time a bug. The powder on the filter 5 can be forcibly separated by centrifugal force to prevent clogging of the bug filter 5.

In addition, since the rotational angular velocity of the bug filter 5 and the rotational angular velocity of the circumferential surface plate 212 are different, the relative position between the assembling nozzle 4 and the circumferential surface plate 212 is changed to transfer the binder liquid for assembly to the powder. Spray can be performed without bias.

Since the compressed air from the compressor is intermittently blown out with respect to the bug filter 5, the fine powder shaken from the filter surface is mixed with the powder forming the powder layer in the process chamber 2, thereby causing a problem of component separation. It does not occur either.

The cover member 216 or the cover member which arrange | positions the motor 3 and the discharge pipe 511 (gas discharge path) in the back side of the process chamber 2, and opens and closes the process chamber 2 in the front side of the process chamber 2 ( Since 112 is arrange | positioned, the process chamber 2 is sealed in the casing 1, and each can be comprised as a single member. As a result, opening and closing of the processing chamber 2 can be made easier than those of the first embodiment.

Since the cover member 216 and the cover member 112 are formed with a transparent member, the behavior can be controlled while visually confirming the processing condition of the powder.

The casing main body 1 having the processing chamber 2 is disposed so that the rotation axis of the circumferential surface plate 212 faces the horizontal direction, and rotates as a point the support shaft 116a that is horizontal and orthogonal to the rotation axis. By making it possible, a fluid processing apparatus can be comprised horizontally at the time of granule processing, Comprising: In the structure, compared with the thing of a vertical apparatus, it can avoid the inclination of the granules by gravity, and can form a favorable fluidized bed, Since the granular material is easy to be uniformly integrated on the inner wall surface side of the circumferential surface plate 212, it is possible to easily obtain a uniformly dispersed fluidized fluidized bed. Therefore, the volume adjustment in the processing chamber 2 by the bottom face plate 202a is unnecessary, and the distribution of inflow air to the circumferential face plate 212 is uniform, which has the advantage that the behavior of the fluidized bed is easily controlled. .

In the non-treatment, the casing body 1 is rotated so that the opening 112a of the casing 1 faces upward, so that the powder and the powder can be easily taken out. Moreover, since the casing 1 has a structure which can change posture from a vertical type to a horizontal type, it can be used also in both a vertical type and a horizontal type, and the process using the posture variation transient containing the inclined posture of 0 to 90 degrees is attained.

Since the processing apparatus main body is rotated through a reduction gear mechanism including a worm 814, a large reduction ratio can be ensured to reduce handle operating force, and the casing 1 can be arbitrarily moved by the brake action of the worm 814. Can be fixed in position.

The flow processing apparatus of the granular material illustrated as a form of 3rd Example of this invention is demonstrated based on FIGS. 15-19. Fig. 15 is an overall perspective view of the flow processing apparatus, Fig. 16 is an operation explanatory view of the casing body, Fig. 17 is a front view showing the casing body portion of the flow processing apparatus, and Fig. 18 is a state in which the outer cover member of the casing body is opened. Fig. 19 is a side sectional view showing the casing body. The third embodiment is an improved version of the second embodiment, and the same reference numerals are used for the symbols showing the common members. As shown in these figures, the casing 1 main body of the flow processing apparatus is a truncated cone cylindrical having an opening 112a in the front face portion, and a cylindrical processing chamber 2 for processing the granular material therein, An air inflow path (circulation path) 215 formed between the processing chamber 2 and the inner wall of the casing, and a bug filter 5 disposed in the center portion of the processing chamber 2 are provided.

An air inflow path 215 is formed between the inner wall surface of the casing 1 and the outer circumferential surface region of the circumferential plate (distribution plate) 212 as the ventilation means of the processing chamber 2. The casing 1 is fixed integrally by the bolt 125 with respect to the L-shaped main body bracket 116 in the rear face part. The opening 112a of the front face portion of the casing 1 is covered with an outer cover member (cover member) 12 of a substantially ridge-shaped flat plate in which a circular transparent acrylic resin is assembled. The outer cover member 12 is screwed so that an up-down direction can be opened and closed in the screw attachment part 122 of the front-end | tip of the slide member 128 in the upper part. The outer cover member 12 also has a grip handle 123 at the bottom and grooves 124 and 124 at the left and right. In order to open and close the outer cover member 12, the left and right screw fastening handles 126 and 126 provided on the outer circumferential side of the casing 1 are coupled to the groove portions 124 and 124, respectively, and the fastening operation is performed. As a result, the outer cover member 12 is deposited on the casing 1 (opening portion 112a) to close the door, and the door is opened by reverse operation. The outer cover member 12 in the open state of the door can be accommodated by sliding the slide member 128 provided to be slidably movable with respect to the guide bar 127 by sliding backward along the guide bar 127. Reference numeral 127 denotes a frame 121 whose front end side is bent in a stepped shape, and the rear end is supported on the case cover 11 upper part, respectively.

Into the bracket 116 constituting the rear surface portion of the casing 1 forming the inner wall of the air inflow path 215, a predetermined gas (a variety of gases such as heated air and inert gas) is introduced into the air inflow path 215. The supply port 13 is formed toward the surface area around the outer periphery of the processing chamber 2. The supply ports 13 are bored at about 30 mm in pore diameter, and are arranged in a total of 12 at predetermined intervals. The gas introduced from these supply ports 13 is circulated along the inner circumferential surface of the casing 1 as the process chamber 2 rotates, that is, the dispersion plate 212 as the ventilation means rotates around the axis. The gas inflow means is comprised by these air inflow paths 215 and the some supply port L3. On the back side of the supply port 13, a gas supply chamber 131 for evenly distributing air from a gas supply device (not shown) provided in the mount 7 described later to each supply port 13 is provided. In the case where heated air is introduced, for example, the air generated by the blower as the gas supply means is heated by a heater and introduced into the gas supply chamber 131.

Although the supply port 13 was formed circularly, it is not limited to this, It is good also as arbitrary shapes, such as an ellipse. In addition, a plurality of smaller supply ports 13 may be formed in an arrangement surface area of one supply port 13, or a supply port may be formed so as to give directionality by blowing of air.

The processing chamber 2 opposes a substantially truncated conical posterior side fixed plate 221 and a disk-shaped inner cover member 216 assembled with a circular transparent acrylic resin at predetermined intervals, during which a cylindrical dispersion plate as a venting means ( 212) is formed by pinching. The inner cover member 216 is detachable from the fixing plate 221. The stationary plate 221 has a ring-shaped granular portion 221a which has an arbitrary width from the dispersion plate (circumferential surface plate) 212 and rises in the axial center direction, and an inclined portion 221b extending from the granular portion 221a. It is formed by. A plurality of bolt pins 214a are provided in the granular portion 221a, and a plurality of attachment holes 214b in the form of large and small holes are drilled in the inner cover member 216. In order to attach the inner cover member 216 to the fixing plate 221, the large hole of the attachment hole 214b is inserted in the bolt head of the bolt pin 214a, and the said inner cover member 216 is rotated to the small hole side, and the said bolt is rotated. It is locked to the upper part and is fixed by the upper and lower bolts 214. When removing the inner cover member 216, it can be performed by the reverse operation, and the attachment and detachment including the dispersion plate 212 can be performed. The distribution plate 212 is disposed at a predetermined interval with respect to the inner circumferential wall surface of the casing 1, and the gas introduced into the air (gas) inflow path 215 flows into the processing chamber 2 via the distribution plate 212. It is configured to.

In the processing chamber 2, an assembling nozzle 4 for two-fluid atomization is provided. The assembling nozzle 4 is connected to a binder supplying device and a compressor (not shown) via a pipe to spray a predetermined assembling binder liquid supplied from the supplying device into the processing chamber 2.

The dispersion plate 212 can be appropriately replaced with a different pore size or material depending on the particle size of the powder to be processed and the like, and a porous plate, a slit, a wire mesh, a multilayer wire mesh, a metal fiber, or the like can be used. For example, a multilayer wire mesh is formed by sintering a plurality of wire meshes with different eyes, applying a predetermined pressure and temperature, and forming a contact surface of fine powder into a fine wire mesh to prevent clogging caused by the powder. Can be.

In the center of the rear side fixing plate 221, a cylindrical rotating support shaft 217 extending rearward is integrally connected, and the cylindrical holder in which the rotation supporting shaft 217 is integrally installed to the main body bracket 116 ( 118 is rotatably supported via the bearing 119. Below the rotation support shaft 217, the motor 3 (drive device) is arrange | positioned. The pulley 312 integrally installed on the motor shaft 311 and the pulley 313 integrally installed on the rotation support shaft 217 are linked to each other via the transmission belt 314. Thereby, the process chamber 2 is rotated in accordance with the drive of the motor 3, and it becomes possible to apply centrifugal force to the granular material inside.

The bug filter 5 is formed of a cylindrical mesh plate, and faces the disk-shaped rear surface plate 512 having an opening in the center and the disk-shaped front surface plate 513 formed in the center at a predetermined interval, It is pinched in between and attached. The rear face plate 512 and the front face plate 513 are connected by a screw bolt 514 provided at the center, and the front face plate 513 and the bug filter 5 are attached and detached by the tension release operation of the bolt 514. This becomes possible. The bug filter 5 is arrange | positioned with respect to the dispersion plate 212 at predetermined intervals, and the arrangement | positioning ratio in the process chamber 2 is wider than the surface area width of the dispersion plate 212, or of the distribution plate 212. It is comprised so that it may be larger than an area, and the gas which flowed in into the process chamber 2 via the distribution plate 212 is discharged | emitted through the bug filter 5.                 

The bug filter 5 can be appropriately replaced with a different pore size or material depending on the particle size of the powder and the like to be processed. The bug filter 5 is used for the dispersion plate 212 to be attached to the retainer and the retainer in addition to the same material. It is also possible to use a cylindrical shape formed by a bag-shaped bug cross (woven fabric, nonwoven fabric) made of various materials, or one formed in a plain shape to secure an area.

A cylindrical discharge pipe 511 extending backward is integrally connected to the central opening of the rear face plate 512, and the gas discharged from the processing chamber 2 to the bug filter 5 passes through the discharge pipe 511. It is configured to be discharged outside (outside the system). The discharge pipe 511 is rotatably supported by the inner peripheral part of the rotation support shaft 217.

In the bug filter 5, the back washing nozzle which is not shown in figure is provided, a compressed gas is blown out intermittently and intermittently, the powder adhered to the bug filter 5 is peeled off, and it returns to the said dispersion plate 212 side. It is. In addition, the bug filter 5 may be configured to use a known retainer and a bag-shaped bug cross fitted to the retainer to instantly expand the bug cross with compressed gas to scatter the powder.

A pair of support shafts 116a and 116b are attached to the attachment surface formed on the left and right sides of the main body bracket 116, respectively. The main body bracket 116 is rotatably journaled and mounted to the mount 7 via these support shafts 116a and 116b. The stand 7 is formed in a substantially U shape from the front so that various equipments (not shown) are built into the bottom portion 721 and the left and right standing side portions 722 and 723, and the standing side portions 722 and 723 are supported. It is a support part (support frame) which journals the shaft 116a, 116b. The casing body 1 is installed on the shaft so as to be rotatable in the vertical direction in the U-shaped space region. The bottom part 721 is equipped with a gas supply device including a blower and a heater. In the standing side part 722, a tank which controls various operations, such as a motor which rotates the casing main body 1 up and down by the operation panel 722a, and a control panel which controls centrifugal force and centripetal force with respect to the granular material in the process chamber 2, Equipped with action control device. In the standing side part 723, the collection bug filter 62 which collects the granulated material which passed through the bug filter 5 and discharged | emitted out of the system from the discharge pipe 511 via the piping hose 511a is equipped.

The support shaft 116b is formed in a tubular shape. The support shaft 116b is formed into a tubular shape, and a gas supply pipe connecting the gas supply device and the gas supply chamber 131, a wiring to the motor 3, and the like are inserted through the casing 1 and the mount. (7) Various equipments are connected.

Thereby, the casing 1 is comprised so that the rotational attitude of the processing chamber 2 can change a rotation attitude from upper to downward, and is the vertical type which makes the rotation axis of the processing chamber 2 vertical, and the horizontal type which makes it horizontal. All are available. In this apparatus, as shown in Fig. 16 (A), the opening 112a of the casing 1 is fed upwardly (in the vertical direction of the axis of rotation axis), and the granular material is fed to the opening 112a. As shown in Fig. 15, the granular material processing is performed in the lateral direction (the rotation axis is horizontal), and the opening 112a is separated downward as shown in Fig. 16B (the rotation axis is the vertical direction). A sieve is taken out.

Next, in the apparatus comprised in this way, the method to dry-process while mixing and granulating a powder is demonstrated. In order to inject a certain amount of powder into the processing chamber 2, first, the outer cover member 12 and the inner cover member 216 are opened with the opening 112a of the casing 1 facing inclined upward, and the process chamber ( 2) A certain amount of granular material is put in to close the outer cover member 12 and the inner cover member 216. Thereafter, the casing 1 is varied in the lateral posture, the motor 3 is driven to rotate the processing chamber 2 to impart a centrifugal force to the granular material, and is uniformly integrated to the inner wall surface side of the circumferential plate 212. . On the other hand, the heated air introduced into the inflow path 215 is introduced into the processing chamber 2 via the circumferential surface plate 212, thereby giving a centripetal force to the granular material, making it fluidized by dispersion and forming a fluidized bed.

By providing the supply discharge pipe of a material in the discharge pipe 511, it can operate continuously, and if a powder granule is thrown in through a supply discharge pipe while rotating the process chamber 2, a predetermined amount of powder can be injected easily in a short time. When compressed air is introduced into the processing chamber 2 using the nozzle 4 for assembling as needed, the fluidized bed formation can be performed smoothly, and a powder layer can be formed to a uniform thickness in a very short time.

Here, in the processing chamber 2, although the wind speed is increased as much as the inner side (axial direction) of the powder layer, the centrifugal force given to one of the powders becomes small, and fluidization starts from the surface of the powder layer. Therefore, even if the rotational speed of the processing chamber 2 is constant, by changing the supply amount of the heating air, a fixed bed, a partial fluidized bed, and a fluidized bed made completely of fluidized particles are not formed as described in Japanese Patent Laid-Open No. 2002-119843. can do.

In the third embodiment of the present invention configured as described above, gas is introduced into the cylindrical processing chamber 2 from the circumferential surface region to form a fluidized bed of granular material, whereby mixing, granulation and drying are performed. At that time, the flow velocity at the center side is faster at the dispersion plate (circumferential surface plate) 212 side as the outermost periphery venting means of the processing chamber 2 and at the bug filter 5 side at the center portion, and as a result, the finer particles accompany the airflow to the center portion. It is easy to move, and the phenomenon that the moved particle is hard to return to the peripheral surface area side appears. Moreover, when the bug filter 5 causes clogging, discharge efficiency may worsen, pressure loss may arise, and the balance of centrifugal force and centripetal force may fall.

By the way, in the bug filter 5 arrange | positioned in the process chamber 2 in this apparatus, the arrangement ratio in the process chamber 2 is wider than the surface area width of the dispersion plate 212 which forms an outer peripheral surface area | region, or a dispersion plate. It is comprised larger than the area of 212.

As a result, the gas flowing into the processing chamber 2 can be discharged to the axial region in the processing chamber 2 where the centrifugal force is weak and the discharge rate is increased. Therefore, the centrifugal force and the centrifugal force of the granular material can be reduced regardless of the particle size. The airflow can be efficiently discharged while balancing, thus avoiding gas drift and controlling the inflow and outflow of gas in the fluidized bed behavior as the most appropriate one. In addition, it is possible to reduce the amount of adhesion of the granular material accompanying the airflow to the bug filter and the amount of outflow of the granular material passing through the bug filter to improve the product recovery rate, thereby centrifugal force against the granular material in the processing chamber 2. By balancing the action of the forces from the opposite direction of the centripetal force, it is possible to improve the control characteristic that a good fluidized bed can be formed. In addition, the balancing adjustment operation of the centrifugal force and the centripetal force by the control means can be further easily performed, and the treatment efficiency can be improved by reliably treating the fine particle granules in the micron and nano regions.

The arrangement ratio between the dispersion plate 212 and the bug filter 5 in the processing chamber 2 is achieved by forming the processing chamber 2 in a truncated cone shape. That is, the granular part 221a which rises with an arbitrary width thru | or height from the dispersion plate 212 side with respect to the axial direction of the processing chamber 2, and the inclined part extended back from the said granular part 221a ( 221b), the entire enlarged center region is effectively utilized to form the arrangement area of the bug filter 5. FIG. As a result, with respect to the granular material on the side of the axial center region in the processing chamber 2 where the centrifugal force is weakened, the bug filter 5 is reduced by slowing the flow velocity at the inclined portion 221b to reduce the centripetal force in the same way as the discharge action to the discharge pipe 511 side. Can be smoothly moved to the granular part 221a side which forms a fluidized bed, including the powder disperse | distributed by the reverse line nozzle.

Although the process chamber 2 in this embodiment formed the shape of the rear side fixed plate 221 into a truncated cone, the shape of the process chamber 2 is not limited to this. The inner cover member 216 may be formed in a truncated cone shape, or both the rear fixing plate 221 and the inner cover member 216 may be formed in a truncated cone shape, and may be viewed as a substantially ridged shape as a whole.

Since the inclined portion 221b is formed toward the rear of the casing 1 (the bracket 116 side), the inclined portion 221b is disposed on the back side of the inclined portion 221b with smooth powder moving to the granular portion 221a side. As a result, the space provided can be used as the inflow path 215 of the air, and the air inflow path 215 in the casing 1 can be largely formed. As a result, in the inflow path 215 (casing 1). The accumulation amount of the heated air is increased, and the pressure is further increased to the dispersion plate 212, whereby the dispersion can be uniformly introduced into the processing chamber 2.

The gas inlet means includes a plurality of air inlets 215 formed between the casing 1 and the distribution plate 212 and a plurality of supply ports 13 disposed at predetermined intervals on an inner wall of the air inlet 215. According to this configuration, the gas can be introduced into the processing chamber evenly from the entire surface area of the dispersion plate 212 even if the gas supplied to the air inflow path 215 is not excessively circulated. Moreover, the supply port 13 can be made small and it is possible to manufacture the supply structure without protruding the gas supply path to the outer surface of the casing 1. As a result, arrangement | positioning of the casing 1, the process chamber 2, and connection with a gas supply apparatus are the most suitable, and it can be made easy to manufacture by simplifying the supply structure of the gas in the whole apparatus.

Since the supply port 13 is provided in the bracket 116 which forms the inner wall of the inflow path 215, the gas supplied from the supply port 13 can flow out toward the direction parallel to the distribution plate 212, The direct outflow (outflow) to the distribution plate 212 can be avoided, and the inside of the inflow path 215 can be pressurized without the circulation by the supply of heating air, and with the rotation of the distribution plate 212, It can be set as the circulation path by the circulation which arises.

The supply port 13 may be provided in the casing 1 which forms the inner wall of the inflow path 215 other than the bracket 116, and of course the outflow direction of air is arbitrary.

Further, on the back side of the supply port 13 (bracket 116), a donut-shaped (annular) gas supply chamber 131 for distributing air from the gas supply device to each supply port 13, 13. The supply port 13 communicates with this gas supply chamber 131. The air supplied from the gas supply device is once accumulated in the gas supply chamber 131, and the air can be evenly distributed to each of the supply ports 13, 13... And flows out into the inflow path 215. The gas supply chamber 131 can be arranged on the back side of the bracket 116 by the motor 3, the discharge pipe 511 (gas discharge path), or the like, and the arrangement or gas supply of the casing 1 and the processing chamber 2 can be performed. The most appropriate connection with the apparatus is to simplify the supply structure of the gas in the entire apparatus and to make it easy to manufacture.

The casing 1 is formed in a truncated conical shape (approximately trapezoidal in cross section) inclined so that the outer shape becomes smaller toward the front, so that the inclined side wall of the casing 1 constitutes the inclined inner wall which becomes the inflow path 215. The air supplied into each of the inflow paths 215 from each of the supply ports 13, 13... Can flow out toward the inclined inner wall, and the flow can be directed toward the circumferential surface region of the distribution plate 212. It is possible to support uniform dispersion inflow into the processing chamber 2.

The mount 7 has standing sides 722 and 723 on the left and right sides, and is formed so as to be substantially U-shaped as a whole, and the processing chamber 2 (casing 1) is placed on the left and right sides of the mount 7. It is mounted in the U-shaped part of the space formed between 722 and 723 via support shafts 116a and 116b orthogonal to a rotation axis center. The standing side parts 722 and 723 serve as a support part (support frame) which journals the support shafts 116a and 116b, and the structure which supports the process chamber 2 so that up-and-down rotation is possible is ensured, and it is an upward, horizontal direction, and downward direction. It is possible to change the posture, and it is possible to use a posture shifting process including an inclined posture in the range of 0 to 90 ° suitable for each operation such as adding, processing, and taking out the granules, which can be used in both vertical and horizontal types. .

One support shaft 116b is formed in a cylindrical shape, and the inside of the cylindrical support shaft 116b is configured by an arrangement path (arrangement pipe) such as a gas supply pipe and a wiring connecting the process chamber 2 and the mount 7. Therefore, these supply pipes and wirings are not exposed to the outside, and carelessness can be attached to the processing material to eliminate the risk of damage such as causing a reaction. Thus, the bottom portion 721 of the mount 7 The connection with the apparatus equipped in the inside and standing part 722,723 can be aimed at.

On the front face side of the processing chamber 2 and the front face side of the casing 1, inner and outer cover members 216 and 12 which can be opened and closed are provided, and the inner cover member 216 can be attached or detached by screwing a bolt or the like. And the outer cover member 12 is screwed to the upper part (or the lower part), and is configured to slide in the rear in the open state, so that the process chamber 2 is sealed in the casing 1. It can be configured as a structure, each partitioned independently, and as a result, the opening and closing and closing of the processing chamber 2 can be facilitated, and the open outer cover member 12 is the operation of the granular material, Even if the posture fluctuates with the upward posture or downward posture accompanying it, it is not disturbed.

Since the inner cover member 216 and the outer cover member 12 are formed of a transparent member, the behavior can be controlled while visually confirming the fluidization and processing conditions of the powder.

In the present invention, the gas is introduced into the cylindrical processing chamber 2 into which the granular material is introduced, through the air permeable circumferential plate 212, and the gas introduced into the processing chamber 2 is discharged out of the processing chamber via the bug filter 5. It is a flow processing apparatus of the granular material, The circulation path 215 of the said gas is formed in the outer peripheral side of the process chamber 2 via the said circumferential surface plate 212, and the said circumferential surface plate 212 is rotatable about an axial center. It is made up. In this way, the gas flows in from the outer circumferential side of the processing chamber via the circumferential surface plate 212 to exert a centripetal force on the granular material, while controlling the behavior of the granular material by applying a centrifugal force to the granular material with the rotation of the circumferential surface plate 212. To form a fluidized bed. Therefore, even in the microparticles | fine-particles granules of a micron and sub micron area | region, various processes, such as mixing, granulation, coating, drying, and reaction, can be performed.

In the present invention, the bug filter 5 is configured such that the arrangement ratio in the processing chamber 2 is wider than the surface area width of the gas venting means 212 or larger than the area of the gas venting means 212. The gas flowing into the processing chamber 2 can be slowed down to the center region in the processing chamber 2 where the centrifugal force is weak and the discharge speed is increased. Therefore, the gas introduced into the processing chamber can be discharged efficiently while balancing the centripetal force and the centrifugal force for the powder regardless of the size of the particle size, and the operation control of the inflow and discharge of the gas in the fluidized bed behavior is the most appropriate. have. In addition, it is possible to improve the product recovery rate by reducing the amount of adhesion of the particulate matter accompanying the airflow to the bug filter and the amount of outflow passing through the bug filter.

According to the present invention, a plurality of gas inlet means are provided at a plurality of gas inlet passages 215 formed between the casing 1 and the venting means 212 and at a predetermined interval on the inner wall of the gas inlet passage 215. It comprises in accordance with (13). By doing in this way, gas is made to flow in into the process chamber 2 evenly from the whole surface area | region of the gas venting means 212, even if the gas supplied to a gas inflow means is not circulated too much. Moreover, the supply port 13 can be made small and a gas supply structure can be manufactured, without protruding the gas supply path to the outer surface of the casing 1. As a result, the arrangement of the gas inlet means and the casing 1 or the processing chamber 2 and the linkage between the gas inlet means and the gas supply device are the most suitable, and the gas supply structure in the entire apparatus is simplified to simplify the manufacture of the device. It becomes easy.

Claims (25)

It is a rotary flow processing apparatus for the granular material which injects gas into the cylindrical processing chamber into which the granular material is injected, through the circumferential face plate having air permeability, and discharges the gas introduced into the processing chamber from the processing chamber through a bug filter. A rotation flow treatment device for a granular material, wherein a circulation path for the gas is formed on the side via the circumferential face plate, and the circumferential face plate is rotatable around the shaft center. The rotational fluid processing apparatus of claim 1, wherein the bug filter is provided at a central portion of the processing chamber, and the circumferential surface plate is rotatable in a circumferential direction of the bug filter. The granular material rotary flow processing apparatus according to claim 1, wherein an assembly nozzle is provided in the bug filter. 3. The rotational fluid processing apparatus of claim 2, wherein the bug filter is configured to be rotatable in the circumferential direction thereof, and is rotated by a predetermined operation means. 3. The rotational fluid processing apparatus of claim 2, wherein the bug filter is configured to be rotatable in a circumferential direction thereof, and is rotated by a predetermined driving device. The rotational flow processing apparatus of the granular material of Claim 5 whose rotational speed of the said bug filter differs from the rotational speed of the said circumferential surface plate. The apparatus of claim 1, wherein a driving device for rotating the circumferential surface plate and a gas discharge passage communicating with the bug filter are disposed at one side of the processing chamber, and a cover member for opening and closing the processing chamber is provided at the other side of the processing chamber. Rotary flow processing apparatus of the granular material, characterized in that disposed. 8. The apparatus of claim 7, wherein the cover member is at least partially formed of a transparent member or a translucent member. The casing body having the processing chamber is arranged so that the rotational axis of the circumferential plate faces in the horizontal direction, and is rotatable as a point with the support shaft crossing the rotational axis in the horizontal direction. Rotating flow treatment device of powder. 10. The rotational fluid processing apparatus of claim 9, wherein the casing main body is rotated via a reduction gear mechanism including a worm gear. The apparatus of claim 1, wherein the circumferential surface plate is made of a porous plate, a slit, a wire mesh, a multilayer wire mesh, or a metal fiber. The rotation flow processing apparatus of the granular material of Claim 1 in which the said bug filter is comprised in the cylinder by the retainer and the bug cross attached to the said retainer. The apparatus for rotating flow treatment of granular material according to claim 1, wherein the flow treatment device is used for mixing, granulating, coating, drying, or reaction treatment of the granular material. In the casing, a rotatable processing chamber formed by arranging a gas-permeable gas venting means around an axis, a gas inlet means formed on an outer circumferential side of the processing chamber for introducing gas into the processing chamber via the gas venting means, and the processing chamber Is a rotary flow treatment device of a granular material, which is provided inside and is provided with a bug filter for discharging the introduced gas to the outside of the processing chamber, wherein the bug filter has an arrangement ratio in the processing chamber wider than the surface area width of the gas venting means, or It is comprised larger than the area of a gas venting means, The rotating flow treatment apparatus of the granular material characterized by the above-mentioned. 15. The rotation of the granular material according to claim 14, wherein the processing chamber is formed of a granular portion that rises from the gas ventilating means side with an arbitrary width in the axial direction and an inclined portion extending from the granular portion. Flow processing device. The rotational fluid processing apparatus of claim 15, wherein the inclined portion is formed toward the rear of the casing. A rotatable process chamber formed by arranging a gas-permeable gas venting means around the shaft in the casing; It is installed and provided with a bug filter for discharging the introduced gas to the outside of the processing chamber, the granular material is a rotary flow processing device, the gas inlet means is a gas inlet formed between the casing and the ventilating means, and the gas inlet The rotational fluid processing apparatus of the granular material characterized by comprising the supply ports arrange | positioned in multiple at predetermined intervals on the inner wall which forms the space | interval. 18. The rotary flow of the granular material according to claim 17, wherein a gas supply chamber for distributing gas from a gas supply device to each of the supply ports is formed on the back side of the supply port, and the supply port communicates with the gas supply chamber. Processing unit. 19. The rotational fluid processing apparatus of claim 18, wherein the gas supply chamber is provided adjacent to the back side of the gas inflow path to the supply port portion. 18. The rotary flow processing apparatus of claim 17, wherein the supply port is provided concentrically or in one or two layers or radially. 18. The apparatus for rotating flow treatment of powder and granular material according to claim 17, wherein the gas supply chamber is formed in an annular shape. 15. The apparatus of claim 14, wherein the apparatus includes a mount equipped with a predetermined gas supply device, a collecting bug filter, an operation control device, and the like, wherein the mount has an overall shape of a substantially U shape when viewed from the front, The processing chamber is mounted in the U-shaped portion via a support shaft. 23. The rotary flow processing apparatus of claim 22, wherein one side of the support shaft is formed in a tubular shape, and the inside of the cylindrical support shaft is configured by an arrangement such as a gas supply pipe and a wiring connecting the processing chamber and the mount. . 15. The casing according to claim 14, wherein an inner cover member and an outer cover member that can be opened and closed are respectively provided on the front face side and the casing front face side of the treatment chamber, and the inner cover member for the treatment chamber is configured to be detachably attached to the treatment chamber. The outer cover member of the rotary fluid processing apparatus of the granular body is configured to be screwed at the upper or lower portion thereof and to be slide-received in the rear in the open state. 15. The rotational fluid processing apparatus of claim 14, wherein the casing is formed in a truncated cone shape inclined forward.

Images